NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a result of UV exposure that benefits the skin?
A
Vitamin D production
B
Sunburn
C
Keratinocytes shed off
D
It increases surface area
Explanation: 

Detailed explanation-1: -Spending longer in the sun will not increase your vitamin D levels. The body only needs a small amount of UV to make vitamin D. Any extra UV exposure will just add to skin damage, not vitamin D. You can’t naturally overdose on vitamin D.

Detailed explanation-2: -Sunlight, in particular UVB between the wavelengths of 290 and 315 nm, is the main source for producing vitamin D in the skin and is the primary source of vitamin D for the body.

Detailed explanation-3: -Vitamin D forms in the skin when it is exposed to UV from sunlight. It can also be obtained from some foods. We need vitamin D to maintain good health and to keep bones and muscles strong and healthy.

There is 1 question to complete.